Lake Michigan: salmon help to redress the balance.
D000818:Animals; D003634:DDT; D004463:Ecology; D005398:Fisheries; D005399:Fishes; D007087:Illinois; D008824:Michigan; D009026:Mortality; D010575:Pesticides / Q000592:standards; D012487:Salmonidae; D014481:United States; D014876:Water Pollution; D014922:Wisconsin
D010575:Pesticides; D003634:DDT